Improvement in packing for piston-rods



F. D. TOUCEY & E. F. SCALLEN.

PACKING FOR PISTON-RODS.

Patenteasepms, 1877.

WITNESSES GNAPHER. WASHINGTON D C UNITED STATES PATENT QEEIGEo FERRIS D.TOUOEY AND EDWARD F. SGALLEN, OF MINNEAPOLIS, M'INN.

IMPROVEMENT IN PACKING FOR PlSTON-RODS.

Specification forming part of Letters Patent No. 195,42 l, datedSeptember 18, 1877; application filed June 2 0, 1877.

To all 'whom it may concern:

Be it known that we, hEERrs D. ToUoEY and EDWARD F. SGALLEN, ofMinneapolis, in the county of Hennepin and State of Minne- Sota, haveinvented a new and valuable Improvement in Packing for Piston-Rods; andwe do hereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same. referencebeing had to the annexed drawings, making a part of this specification,and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a longitudinal verticalcentral sectional view of our packing for piston-rods; and Figs. 2, 3,4, 5, 6, 7, and 8 are details of the same.

The nature of our invention consists in the construction and arrangementof a packing for piston-rods for steam-engines, pumps, &c., -as will behereinafter more fully set forth.

The annexed drawings, to which reference is made, fully illustrate ourinvention.

A represents the cylinder-head, formed with the box B on its outer side,and through which the piston-rod C passes. Around this rod, within thebox B, is placed the packing, consistin g of an L-shaped sectional ring,D, provided with an interior sectional ring, D1, and surrounded by anopen spring, D2, as springs. The rings D and D1 are arranged to breakjoints, and a pin, a, connects one section of one ringr with one sectionof the other ring, whereby they are prevented from turning, so as toopen the joints, which would cause the steam to escape.

On top of this packing is placed a ring, Gr, made in one piece, havingits inner surface iiat, and its edge made beveled and convex,

said ring covering the segmental packingrings, and forming the maleportion of a balljoint. The female portion of this ball-joint is formedof a ring, G', having a concave surface fitting over the convex surfaceof the ring Gr. A cap-nut, H, is then screwed on, which connes all theparts in the box B.

The segmental packing-rings D Dl could not be used successfully alone,as all steamengine piston and valve rods have three differentrrroti'o's' at the same time, namely. forward or backward, oscillating,and lateral motions; but the ball-joint rings Gr Gr cover these threemotions. and keep the segmentrings square on the rod in all cases.

The ring Gis provided with a series of ports or holes, a', for theescape of an5/Y steam which may enter behind it, thus incidentallyrelieving the steam-pressure of the ring G on the ring G', and lesseningthe friction of the former on the latter.

' What we claim as new, and desire to secure by Letters Patent, is-

lhe combination, with the cylinder-head A, box B, and piston-rod C,ofthe L-shaped perforated sectors D and sectors D1, having pins a, andarranged to break joints with each other, spring D2, male ring G, withholes a', female ring G', and cap H, as and for the purpose set forth.

In testimony that We claim the above we have hereunto subscribed ournames in the presence of two witnesses.

FERRIS D. TOUCEY. EDWARD F. SCALLEN. Witnesses:

O. NAEGELL, W. S. HUGHES.

